Mixed convection in a ventilated enclosure with different heater position

Abstract

A comprehensive investigation on mixed convection in a ventilated enclosure has been carried out numerically for different positions of heat sources at the sidewalls. The relative position of the isothermal heat source and heat sink on both vertical walls influences the heat transfer process. Different configurations are simulated using an in-house developed CFD code, based on finite volume method. The characteristics of heat transfer, flow complexity and entropy generation are calculated as a function of Richardson number (Ri = 0.01–100) and Reynolds number (Re = 100). The results for different position of heat sources and heat sinks are presented along with isotherms, streamlines and Bejan number. The results show that the performance with middle-middle position of heat source is always superior.